Fractal as a tool to build web component libraries and integration with Drupal 8 theme.

I would like to tell about component based themes. All pros and cons of this approach. When it can be useful and when it shouldn't be used.

Then I want to review libraries that can help us for it. And will show how we can use Fractal as a base for our web components. I would tell about issues that we faced during integration with Drupal 8 theme and recommend how it can be resolved effectively.